"Red" Tower
Corso Alfieri

Sixteen-sided structure dating from the Augustan period (1st century B. C. - 1st century A.D.) up to the first cornice, raised by two storeys in the Romanesque period (11th century). This is one of the two tower which, connected by an arcade, formed the western city-gate. The Roman town was divided by the "Via Fulvia" (now Corso Alfieri) which, forming the axis of the city, took the name of "contrada Maestra". This road came in at the east from Derthona (Tortona) and left the town heading south towards Pollentia (Pollenzo - Alba - the alpine passes of Cuneo), and heading west and north - west towards Carreum Potentia (Chieri - Torino - Monginevro) and Industria (Monteu da Po - Chivasso - Ivrea - St. Bernard Pass). The fork towards Vardacate (Casale - Vercelli - St. Gothard) - now Corso Casale - was located outside the entrance to the city. The tower served as a bell-tower for the ancient church (Romanesque) of St. Catherine. Its name derives from the fact that it belonged to the De Rubeis (Rossi) family at a later date.

"Domus romana"
32, Via Varrone

Remains of an aristocratic Roman house (fragments of fresco on the plaster, marble decorations, bricks, thermal system, vast polychromatic mosaic) intersected by medieval foundation walls. The orientation of the walls is significant, perpendicular to the "Via Fulvia". Opposite,the complex of the ancient convent of the Poor Clares, 16th century architecture, frescos by Giovan Carlo Aliberti (18th century).